Today, the hardware maker unleashed the HP Compaq dc7900, a business desktop with a version of Firefox that isn't really there. Developed in tandem with Symantec, the Firefox for HP Virtual Solutions browser operates in a runtime netherworld that's separate from the rest of the machine.This means that when malware attacks, the machine itself is unharmed. "[This virtual Firefox browser] ensures that employees can utilize the World Wide Web productively, while keeping business PCs stable and easier to support," writes Symantec technical product manager Scott Jones. "Changes made to a PC while surfing the Web are contained in a 'virtual layer' and do not permanently alter the machine."